UNDERDEEP is listed on Steam as released October 29, 2026 at $6.49, developed by UNDERDEEP and tagged Adventure, Indie, RPG, Simulation and Strategy.
VERIFIED Source: Steam store page (appid 4065440), checked 2026-10-30
News · underdeep · 2026-10-30
UNDERDEEP: What It Is, Price and Release Date (Oct 2026)
UNDERDEEP is a $6.49 idle RPG with dungeon mapping, a flexible job system and over 500 items, out on Steam October 29, 2026.
Status is labeled honestly; nothing here is copied from other sites.
Direct answer
Facts below are verified against the sources listed; nothing here is copied from other sites.
Baseline date: 2026-10-30. Always confirm in-game for anything time-sensitive.
Key facts
What we checked
Each fact lists the source that supports it.
The store page describes an idle RPG set in a gritty fantasy world centred on dungeon exploration and mapping that blends the charm of classic RPGs with modern idle mechanics.
VERIFIED Source: Steam store page (appid 4065440), checked 2026-10-30
The dungeon holds over 500 unique items, and a character who starts as a Newbie can evolve into roles such as warrior, rogue, ruler or crafter.
VERIFIED Source: Steam store page (appid 4065440), checked 2026-10-30
FAQ
Frequently asked questions
How much is UNDERDEEP?
It is $6.49 on Steam. It released on October 29, 2026 and is developed by UNDERDEEP.
Is UNDERDEEP an idle game?
Yes. The store page calls it an idle RPG and says exploration can be automated, with your character continuing to adventure while you are not actively playing.
What happens with other players in UNDERDEEP?
The page describes casual asynchronous multiplayer: you may encounter characters created by other players inside the dungeon, and you set your own dialogue and behaviour options for those meetings.
What can you find in the UNDERDEEP dungeon?
Over 500 unique items, including weapons, armor and accessories, plus skill synergies and a karma system that responds to your behaviour.
Details
The full picture
Written from verified facts; labels mark how strong each statement's evidence is.
What UNDERDEEP is
You create a character before the first dive: you name them, choose their appearance and set out with that character.
Mapping is the centre of exploration. Locations are recorded automatically as you explore, and you place your own custom markers to track important spots.
The page calls observation and note-taking skills key to successful expeditions, and says gear should be used strategically before you push into more dangerous, more rewarding areas.
Jobs, skill builds and idle play
Progression starts at Newbie and evolves into a range of roles - warrior, rogue, ruler or crafter - so how you grow decides the path you take.
Skill builds carry the strategy: the page says some skills create synergies that dramatically amplify your power.
Exploration can be played manually or automated, so you can set your strategy beforehand and the character keeps adventuring while you are not playing.
Inside the dungeon you may run into characters created by other players; you customise your own dialogue and behaviour settings ahead of those encounters.
A karma system reacts to how you behave in the dungeon and asks whether you walk the path of light or descend into darkness.
Who it suits, and what it is like
The store page positions UNDERDEEP as an idle RPG that blends "the charm of classic RPGs with modern idle mechanics" (BOUNDED: official Steam description, checked 2026-10-30).
It calls the idle-friendly setup "perfect for busy players who want to keep progressing" (BOUNDED: official Steam description, checked 2026-10-30).
The page names no other game as a comparison; the closest reference it gives is its own description of dungeon exploration with mapping and note-taking (BOUNDED: official Steam description, checked 2026-10-30).
Coverage & items to verify
What you can use right now, and what must be re-checked before publishing or by the next update.
| Field | Ready now | To verify |
|---|---|---|
| Facts & sources | 3 verified fact(s), each with its source. | Re-check with the next data pull. |
| Update cadence | Baseline 2026-10-30. | Codes/news re-checked every 3–7 days, daily around events. |
Evidence boundary
Sources behind this page
store.steampowered.com/app/4065440
Opened and used as the reference for the facts above.
Open source ↗Labels: VERIFIED official source · BOUNDED attributable secondary source · COMMUNITY player report pending verification. Re-check time-sensitive data in-game.
Last checked: 2026-10-30Related
Keep reading
Next step